81608709

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9643}}^1$

素因数の和:9697

約数の個数: 32

約数和(自身を含む): 138256384

約数和(自身を除く): 56647675

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 8463, 9643, 28929, 67501, 125359, 202503, 298933, 376077, 877513, 896799, 2092531, 2632539, 3886129, 6277593, 11658387, 27202903, 81608709]

約数ペア:

[(1, 81608709), (3, 27202903), (7, 11658387), (13, 6277593), (21, 3886129), (31, 2632539), (39, 2092531), (91, 896799), (93, 877513), (217, 376077), (273, 298933), (403, 202503), (651, 125359), (1209, 67501), (2821, 28929), (8463, 9643)]